Angry Birds studio Rovio has posted its earnings report for financial year 12/13, flagging a 2.5% increase in revenue year-on-year. However, CFO Herkko Soininen called 2013 a “foundation-building year” that will allow the firm space to expand and grow moving forward.

Angry Birds developer Rovio has around 800 staff, but less than half of them are working on games. That’s the claim of executive vice president of games Jami Laes, who has commented on the company’s expansion into entertainment.